Word Type

Adjective

Adjective

The word "fallible" can be used as adjective and adjective.

Word Relationships

Opposites (Antonyms)

infallible infallible perfect

Derived Terms

fallibleness fallibly nonfallible unfallible

Related Terms

fail fallacious fallacy fallibilism fallibilist fallibility

Related Terms

fail fallacious fallacy fallibilism fallibilist fallibility infallibility mistake wrong

Similar Terms

errant errant erring error prone error-prone human undependable undependable unreliable weak weak

Synonym Network

defective faultful faulty imperfect

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.